CN108355198B - Steel needle-free infusion system - Google Patents
Steel needle-free infusion system Download PDFInfo
- Publication number
- CN108355198B CN108355198B CN201810181134.6A CN201810181134A CN108355198B CN 108355198 B CN108355198 B CN 108355198B CN 201810181134 A CN201810181134 A CN 201810181134A CN 108355198 B CN108355198 B CN 108355198B
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- infusion
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- bottle
- butt joint
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- 238000001802 infusion Methods 0.000 title claims abstract description 128
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 9
- 239000010959 steel Substances 0.000 title claims abstract description 9
- 210000001503 joint Anatomy 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 239000003814 drug Substances 0.000 claims abstract description 11
- 230000006378 damage Effects 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 description 23
- 230000005389 magnetism Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a steel needle-free infusion system, which relates to the technical field of medical equipment and comprises an infusion bottle, a butt joint device and an infusion catheter, wherein the bottle mouth of the infusion bottle is movably connected with one end of the infusion catheter through the butt joint device, the other end of the infusion catheter is provided with an infusion butt joint port, a reinforcing device is further arranged between the infusion bottle and one end of the infusion catheter, the reinforcing device comprises a lower sleeve opening and an upper buckle, the lower sleeve opening is of a hollow tubular structure, the upper buckle is a ring with a notch, one end of the lower sleeve opening is fixedly arranged on the infusion catheter, the upper buckle is movably arranged at the other end of the lower sleeve opening, and the infusion catheter is further provided with a liquid stopping buckle and a needle-free medicine adding port. The puncture device has the advantages of eliminating the damage of the puncture device to nurses or patients and the secondary damage of puncture scraps generated by the puncture device to the patients.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a steel needle-free infusion system.
Background
The infusion apparatus is used as the most common equipment for medical care, is a key channel between the vein of a patient and therapeutic liquid medicine, and has extremely wide application range particularly in China. The excellent infusion apparatus can help the patient recover early, otherwise, secondary injury can be caused, and the illness state of the patient is aggravated. The transfusion systems in the market at present have various varieties and different functions, but are consistent in main structure, and a puncture outfit is used for connecting a transfusion bottle (bag) with a transfusion pipeline and infusing the liquid medicine into a patient to treat diseases. The main structure is unchanged since the birth of the infusion apparatus, and the defects of the main structure are increasingly highlighted in the clinical use process. Firstly, when a medical staff infuses the vein of a patient, the bottle stopper puncture outfit is inserted into the infusion bottle with great force, and then the vein is infused after operations such as exhausting are performed. In the process, in order to facilitate puncture, the surface of the puncture outfit is made smooth and sharp, medical staff is extremely easy to cause injury during operation, puncture scraps are inevitably generated in the puncture process, and secondary injury and even serious hazard can be caused to human bodies when the puncture scraps enter the infusion container and are mixed with liquid medicine. In recent years, although related patents optimize puncture devices or connection devices to reduce the drawbacks thereof, for example, a blunt puncture structure is adopted, a puncture protection device is added, etc., the use of puncture devices is not completely eliminated, and the problems described above are solved. Therefore, a brand new transfusion structure device is developed to replace the use of the puncture outfit, and the problem is radically eliminated, so that the transfusion structure device has great practical significance and use value.
Disclosure of Invention
The invention aims to solve the technical problem of providing a steel needle-free infusion system which can eliminate the damage of puncture outfit to nurses or patients and the secondary damage of puncture debris generated by the puncture outfit to the patients.
In order to solve the technical problems, the invention provides a steel needle-free infusion system which comprises an infusion bottle, a butt joint device and an infusion catheter, wherein the bottle mouth of the infusion bottle is movably connected with one end of the infusion catheter through the butt joint device, the other end of the infusion catheter is provided with an infusion butt joint port, a reinforcing device is further arranged between the infusion bottle and one end of the infusion catheter, the reinforcing device comprises a lower sleeve opening and an upper buckle, the lower sleeve opening is of a hollow tubular structure, the upper buckle is a ring with a notch, one end of the lower sleeve opening is fixedly arranged on the infusion catheter, the upper buckle is movably arranged at the other end of the lower sleeve opening, and the infusion catheter is further provided with a liquid stopping buckle and a needle-free medicine adding port.
Preferably, the bottleneck of infusion bottle and the one end of infusion pipe pass through magnetism interfacing apparatus swing joint, magnetism interfacing apparatus includes magnetism joint and magnetism lower clutch, magnetism joint and magnetism lower clutch are hollow cylinder structure, and magnetism joint's one end is connected with the bottleneck of infusion bottle, magnetism joint's the other end is the recess form, magnetism lower clutch's one end is protruding form structure, magnetism lower clutch's one end is connected for magnetism with magnetism joint's the other end, magnetism lower clutch's the other end is connected with infusion pipe's one end, magnetism interfacing apparatus's outside still overlaps and is equipped with TPE pipe, magnetism joint's the other end is the recess form, magnetism lower clutch's one end is protruding form structure, can prevent that butt joint department weeping between magnetism joint and the magnetism lower clutch, the cover is equipped with TPE pipe, can avoid with infusion medicine or medical personnel, patient direct contact, cause the pollution.
Preferably, the magnetic lower connector is a hollow cylinder or an iron hollow cylinder, so that attraction between the magnetic connector and the magnetic lower connector can be realized through magnetism.
Preferably, the tensile resistance of the magnetic connection between one end of the magnetic lower connector and the other end of the magnetic connector is at least 10N, so that the magnetic connector and the magnetic lower connector can be prevented from being combined loose and falling off.
Preferably, the bottle mouth of the infusion bottle is movably connected with one end of the infusion catheter through a latch, the latch comprises a first latch and a second latch, the first latch comprises a first upper chuck and a first lower chuck, the first upper chuck and the first lower chuck are mutually parallel, the first upper chuck and the first lower chuck are fixedly connected through a first clamping column, the first upper chuck is annular, the first lower chuck is three-quarter annular, the first clamping column is one-fourth annular, the outer diameters of the first upper chuck, the first lower chuck and the first clamping column are the same, a first cavity is formed among the first upper chuck, the first lower chuck and the first clamping column, the second latch comprises a second upper chuck and a second lower chuck, the second upper chuck and the second lower chuck are mutually parallel, the second upper chuck and the second lower chuck are fixedly connected through a second clamping column, the second upper chuck is three-quarters circular ring, the second lower chuck is circular ring, the second clamping column is one-fourth circular ring, the outer circle radiuses of the second upper chuck, the second lower chuck and the second clamping column are all the same, a second cavity is formed among the second upper chuck, the second lower chuck and the second clamping column, the second upper chuck is movably arranged in the first cavity, the first lower chuck is movably arranged in the second cavity, the shape of the second upper chuck is matched with the shape of the first cavity, the shape of the first lower chuck is matched with the shape of the second cavity, the inner circle of the first clamping tooth is communicated with the bottle mouth of the infusion bottle, the inner circle of the second lower chuck is communicated with one end of the infusion catheter, and through interference fit between the first clamping tooth and the second clamping tooth, the first clamping tooth and the second clamping tooth can be separated only by transverse force when the infusion is ended, so that the infusion operation is simple and convenient.
Preferably, the second upper chuck is in interference fit with the first cavity, and the first lower chuck is in interference fit with the second cavity, so that the first clamping teeth and the second clamping teeth are easy to separate, and the infusion operation is simple and convenient.
Preferably, the bottleneck of infusion bottle and the one end of infusion pipe pass through butt joint swing joint, the butt joint includes upper joint and lower clutch, the one end of upper joint is connected with the bottleneck of infusion bottle, the other end of upper joint is provided with the bellying, and upper joint and bellying integrated into one piece, still be provided with first cavity in the upper joint, be provided with the second cavity in the bellying, first cavity is linked together with the second cavity, still be provided with the sealing head device in the butt joint, the sealing head device includes sealing rod and sealing head, the sealing rod sets up in first cavity, and the one end of sealing rod and the one end fixed connection of cavity, the internal activity of second cavity is provided with the sealing head, through spring coupling between sealing rod and the sealing head, the one end of lower clutch is provided with the recess, the bellying cooperatees with the recess, and the bellying activity sets up in the recess, the one end of infusion pipe sets up in the recess, and the one end of infusion pipe corresponds with the position of sealing head, this process does not need any puncture operation, can not bring the problem that the puncture operation produced.
Preferably, the connection mode of the protruding part and the groove part is threaded connection or snap connection, no puncture operation is needed in the process, the problem of scraps generated by the puncture operation is avoided, and the infusion is safer.
Preferably, the outer wall of the protruding portion is provided with external threads, the inner wall of the groove portion is provided with internal threads, the protruding portion is in threaded connection with the groove portion, the bottle mouth of the infusion bottle is movably connected with one end of the infusion catheter through the butt joint, any puncturing operation is not needed, the chipping problem caused by the puncturing operation cannot be caused, and the infusion is safer.
Preferably, the outer wall of bellying is last to be provided with outer buckle, is provided with the buckle groove on the inner wall of recess portion recess, is connected through outer buckle and buckle groove between bellying and the recess portion, and the bottleneck of infusion bottle is through butt joint swing joint with the one end of infusion pipe, need not any puncture operation, can not bring the piece problem that the puncture operation produced, makes infusion safer.
The invention has the beneficial effects that:
(1) The magnetic butt joint device, the latch, the threaded or the buckle type butt joint mode can eliminate the puncture damage of the puncture outfit to nurses or patients and the secondary damage of puncture scraps generated by the puncture outfit to the patients;
(2) Adopts various butt joint modes to replace the traditional puncture connection: the magnetic butt joint device, the latch, the threaded or the buckle type butt joint mode is low in cost and easy to realize in industrial scale production.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a needleless infusion system of the invention;
FIG. 2 is a schematic view of a reinforcement device structure of a needleless infusion system according to the present invention;
FIG. 3 is a schematic view of a magnetic docking mechanism of a needleless infusion system according to the present invention;
FIG. 4 is a schematic illustration of a latch structure of a needleless infusion system of the invention;
FIG. 5 is a schematic view of the structure of a butt joint threaded connection of a steel needle-free infusion system of the invention;
fig. 6 is a schematic structural view of a snap-fit connection of a butt joint of a needleless infusion system of the present invention.
The reference numerals are: 1. an infusion bottle; 2. a docking device; 3. an infusion catheter; 31. a liquid stopping buckle; 32. a needleless dosing port; 4. an infusion port; 5. a reinforcing device; 51. a lower sleeve opening; 52. an upper buckle; 6. a magnetic docking device; 61. a magnetic joint; 62. a magnetic lower joint; 7. a TPE catheter; 8. latch teeth; 81. a first latch; 811. a first upper chuck; 812. a first lower chuck; 813. a first clamping column; 814. a first cavity; 82. a second latch; 821. a second upper chuck; 822. a second lower chuck; 823. a second clamping column; 824. a second cavity; 9. a butt joint; 91. an upper joint; 92. a boss; 93. a first cavity; 94. a second cavity; 95. a groove portion; 96. an outer buckle; 97. a buckle groove; 98. a lower joint; 10. a seal head device; 101. a sealing rod; 102. a sealing head; 103. and (3) a spring.
Detailed Description
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, a steel needle-free infusion system of this embodiment comprises an infusion bottle 1, a butt joint device 2 and an infusion catheter 3, wherein the bottle mouth of the infusion bottle 1 is movably connected with one end of the infusion catheter 3 through the butt joint device 2, the other end of the infusion catheter 3 is provided with an infusion butt joint port 4, a reinforcing device 5 is further arranged between the infusion bottle 1 and one end of the infusion catheter 3, the reinforcing device 5 comprises a lower sleeve mouth 51 and an upper buckle 52, the lower sleeve mouth 51 is of a hollow tubular structure, the upper buckle 52 is a ring with a notch, one end of the lower sleeve mouth 51 is fixedly arranged on the infusion catheter 3, the upper buckle 52 is movably arranged at the other end of the lower sleeve mouth 51, the infusion catheter 3 is further provided with a liquid stopping buckle 31 and a needle-free medicine adding port 32, the bottle mouth of the infusion bottle 1 is movably connected with one end of the infusion catheter 3 through a magnetic butt joint device 6, the magnetic butt joint device 6 comprises a magnetic joint 61 and a magnetic lower joint 62, the magnetic joint 61 and the magnetic lower joint 62 are of hollow cylinder structures, one end of the magnetic joint 61 is connected with the bottle mouth of the infusion bottle 1, the other end of the magnetic joint 61 is in a groove shape, one end of the magnetic lower joint 62 is of a convex structure, one end of the magnetic lower joint 62 is magnetically connected with the other end of the magnetic joint 61, the other end of the magnetic lower joint 62 is connected with one end of the infusion catheter 3, the TPE catheter 7 is sleeved outside the magnetic butt joint device 6, the magnetic lower joint 62 is a hollow cylinder or an iron hollow cylinder, the tensile force of the magnetic connection between one end of the magnetic lower joint 62 and the other end of the magnetic joint 61 is at least 10N, the lower sleeve mouth 51 and the upper buckle 52 can be directly connected by attraction in favor of the magnetic attraction principle during infusion, the convex structure at one end of the magnetic lower joint 62 is placed in the groove at the other end of the magnetic joint 61 to prevent liquid leakage at the butt joint between the magnetic joint 61 and the magnetic lower joint 62, and the TPE catheter 7 is sleeved to avoid pollution caused by direct contact with the infused medicine or medical staff and patients, and the liquid stopping buckle 31 is also arranged on the infusion catheter 3, and the liquid stopping buckle 31 is in a closed state when infusion is not carried out or started; when transfusion is needed, the magnetic butt joint device 6 is used for butt joint the bottle mouth of the transfusion bottle 1 with the transfusion catheter 3, and at the moment, the liquid stop buckle 31 is opened for exhausting and other operations, so that transfusion is directly carried out; when the transfusion is needed to be suspended, the medical staff can directly close the liquid stop buckle 31, any puncture operation is not needed in the process, and the problem of scraps generated by the puncture operation is avoided.
Example two
As shown in fig. 1 and 4, the bottle mouth of the infusion bottle 1 is movably connected with one end of the infusion conduit 3 through the butt joint device 2, the other end of the infusion conduit 3 is provided with an infusion butt joint port 4, a reinforcing device 5 is further arranged between the infusion bottle 1 and one end of the infusion conduit 3, the reinforcing device 5 comprises a lower sleeve mouth 51 and an upper clamping buckle 52, the lower sleeve mouth 51 is of a hollow tubular structure, the upper clamping buckle 52 is a ring with a notch, one end of the lower sleeve mouth 51 is fixedly arranged on the infusion conduit 3, the upper clamping buckle 52 is movably arranged at the other end of the lower sleeve mouth 51, the infusion conduit 3 is further provided with a liquid stopping buckle 31 and a needleless medicine adding port 32, the bottle mouth of the infusion bottle 1 is movably connected with one end of the infusion conduit 3 through a clamping tooth 8, the clamping tooth 8 comprises a first clamping tooth 81 and a second clamping tooth 82, the first clamping tooth 81 comprises a first upper chuck 811 and a first lower chuck 812, the first upper chuck 811 and the first lower chuck 812 are parallel to each other, the first upper chuck 811 and the first lower chuck 812 are fixedly connected through a first clamping column 813, the first upper chuck 811 is circular, the first lower chuck 812 is three-quarter circular, the first clamping column 813 is three-quarter circular, the outer circular radii of the first upper chuck 811, the first lower chuck 812 and the first clamping column 813 are the same, a first cavity 814 is formed among the first upper chuck 811, the first lower chuck 812 and the first clamping column 813, the second clamping tooth 82 comprises a second upper chuck 821 and a second lower chuck 822, the second upper chuck 821 and the second lower chuck 822 are parallel to each other, the second upper chuck 821 and the second lower chuck 822 are fixedly connected through a second clamping column 823, the second upper chuck 821 is three-quarter circular, the second lower chuck 822 is circular, the second clamping column 823 is one-quarter circular, the outer circular radii of the second upper chuck 821, the second lower chuck 822 and the second clamping column 823 are the same, a second cavity 824 is formed among the second upper chuck 821, the second lower chuck 822 and the second clamp column 823, the second upper chuck 821 is movably arranged in the first cavity 814, the first lower chuck 812 is movably arranged in the second cavity 824, the shape of the second upper chuck 821 is matched with that of the first cavity 814, the shape of the first lower chuck 812 is matched with that of the second cavity 824, the inner circle of the first clamping tooth 81 is communicated with the bottle mouth of the infusion bottle 1, the inner circle of the second lower chuck 822 is communicated with one end of the infusion catheter 3, the second upper chuck 821 is in interference fit with the first cavity 814, the first lower chuck 812 is in interference fit with the second cavity 824, the second upper chuck 821 is inserted into the first cavity 814, meanwhile, the first lower chuck 812 is inserted into the second cavity 824 to complete connection, and at the moment, the liquid stop buckle 31 is opened to perform operations such as exhausting, and the infusion is directly performed; when the transfusion is needed to be suspended, the medical staff directly closes the liquid stopping buckle 31 and then transversely forces the liquid stopping buckle to separate the first clamping tooth 81 from the second clamping tooth 82, so that the transfusion operation is simple and convenient, any puncture operation is not needed in the process, and the problem of scraps generated by the puncture operation can be avoided.
Example III
As shown in fig. 1, 5 and 6, the bottle mouth of the infusion bottle 1 is movably connected with one end of the infusion catheter 3 through the butt joint device 2, the other end of the infusion catheter 3 is provided with an infusion butt joint port 4, a reinforcing device 5 is further arranged between the infusion bottle 1 and one end of the infusion catheter 3, the reinforcing device 5 comprises a lower sleeve mouth 51 and an upper buckle 52, the lower sleeve mouth 51 is of a hollow tubular structure, the upper buckle 52 is a ring with a notch, one end of the lower sleeve mouth 51 is fixedly arranged on the infusion catheter 3, the upper buckle 52 is movably arranged at the other end of the lower sleeve mouth 51, the infusion catheter 3 is also provided with a liquid stopping buckle 31 and a needleless medicine adding port 32, the bottle mouth of the infusion bottle 1 is movably connected with one end of the infusion catheter 3 through the butt joint port 9, the butt joint port 9 comprises an upper joint 91 and a lower joint 98, one end of the upper joint 91 is connected with the bottle mouth of the infusion bottle 1, the other end of the upper joint 91 is provided with a protruding part 92, the upper joint 91 and the bulge 92 are integrally formed, the upper joint 91 is internally provided with a first cavity 93, the bulge 92 is internally provided with a second cavity 94, the first cavity 93 is communicated with the second cavity 94, the butt joint 9 is movably provided with a sealing head device 10, the sealing head device 10 comprises a sealing rod 101 and a sealing head 102, the sealing rod 101 is arranged in the first cavity 93, one end of the sealing rod 101 is fixedly connected with one end of the cavity 911, the second cavity 94 is movably provided with the sealing head 102, the sealing rod 101 is connected with the sealing head 102 through a spring 103, one end of the lower joint 98 is provided with a groove 95, the bulge 92 is matched with the groove 95, the bulge 92 is movably arranged in the groove 95, one end of the infusion catheter 3 is arranged in the groove 95, one end of the infusion catheter 3 corresponds to the sealing head 102, the connection mode of the protruding part 92 and the groove part 95 is threaded connection or snap connection, external threads are arranged on the outer wall of the protruding part 92, internal threads are arranged on the inner wall of the groove part 95, the protruding part 92 is in threaded connection with the groove part 95, an external snap 96 is arranged on the outer wall of the protruding part 92, a snap groove 97 is arranged on the inner wall of the groove part 95, the protruding part 92 is connected with the groove part 95 through the external snap 96 and the snap groove 97, and when the upper joint 91 and the lower joint 98 are not in butt joint, the sealing head 102 seals the second cavity 94 due to the expansion force of the spring 103, so that the lower end of the bottle mouth of the infusion bottle 1 is in a closed state; when the infusion is needed, the infusion catheter 3 is installed in the buckling groove 97 through the threaded rotation or the outer buckle 96, so that the upper connector 91 is in butt joint with the lower connector 98, the butt joint of the bottle mouth of the infusion bottle 1 and the infusion catheter 3 is realized, no puncture operation is needed in the process, and the problem of scraps generated by the puncture operation cannot be caused.
Claims (1)
1. A steel needle-free infusion system, characterized in that: the infusion bottle comprises an infusion bottle (1), a butt joint device (2) and an infusion catheter (3), wherein the bottle mouth of the infusion bottle (1) is movably connected with one end of the infusion catheter (3) through the butt joint device (2), the other end of the infusion catheter (3) is provided with an infusion butt joint port (4), the infusion catheter (3) at the lower end of the butt joint device (2) is also provided with a reinforcing device (5), the reinforcing device (5) comprises a lower sleeve opening (51) and an upper buckle (52), the lower sleeve opening (51) is of a hollow tubular structure, the upper buckle (52) is a ring with a notch, one end of the lower sleeve opening (51) is fixedly arranged on the infusion catheter (3), the upper buckle (52) is movably arranged at the other end of the lower sleeve opening (51), and the infusion catheter (3) is also provided with a liquid stop buckle (31) and a needleless medicine adding port (32);
the bottle mouth of the infusion bottle (1) is movably connected with one end of the infusion conduit (3) through a latch (8), the latch (8) comprises a first latch (81) and a second latch (82), the first latch (81) comprises a first upper chuck (811) and a first lower chuck (812), the first upper chuck (811) and the first lower chuck (812) are mutually parallel, the first upper chuck (811) and the first lower chuck (812) are fixedly connected through a first clamping column (813), the first upper chuck (811) is in a circular ring shape, the first lower chuck (812) is in a three-quarter circular ring shape, the first clamping column (813) is in a one-fourth circular ring shape, the outer circular radii of the first upper chuck (811), the first lower chuck (812) and the first clamping column (813) are the same, a first cavity (814) is formed between the first upper chuck (811), the first lower chuck (812) and the first clamping column (813), the second upper chuck (811) comprises a second upper chuck (821) and a second lower chuck (821) which are mutually parallel, the second upper chuck (821) and the second upper chuck (821) are mutually connected with the second upper chuck (821) and the second chuck (822) in a three-quarter circular ring shape, the second clamping column (823) is a quarter ring, the outer diameters of the second upper chuck (821), the second lower chuck (822) and the second clamping column (823) are the same, a second cavity (824) is formed among the second upper chuck (821), the second lower chuck (822) and the second clamping column (823), the second upper chuck (821) is movably arranged in the first cavity (814), the first lower chuck (812) is movably arranged in the second cavity (824), the shape of the second upper chuck (821) is matched with the shape of the first cavity (814), the shape of the first lower chuck (812) is matched with the shape of the second cavity (824), the inner circle of the first clamping tooth (81) is communicated with the bottle mouth of the infusion bottle (1), and the inner circle of the second lower chuck (822) is communicated with one end of the infusion catheter (3);
the second upper chuck (821) is in interference fit with the first cavity (814), and the first lower chuck (812) is in interference fit with the second cavity (824).
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CN201810181134.6A CN108355198B (en) | 2018-03-06 | 2018-03-06 | Steel needle-free infusion system |
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CN201810181134.6A CN108355198B (en) | 2018-03-06 | 2018-03-06 | Steel needle-free infusion system |
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CN108355198B true CN108355198B (en) | 2024-02-13 |
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CN109224181B (en) * | 2018-11-15 | 2021-05-18 | 宿迁市春明医疗器材有限公司 | Puncture-free infusion apparatus |
CN113058154A (en) * | 2021-03-01 | 2021-07-02 | 河北医科大学第二医院 | Oral-nasal replacement kit for oral-nasal retention pipeline |
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